284 lines
8.5 KiB
Bash
Executable File
284 lines
8.5 KiB
Bash
Executable File
#!/usr/bin/env sh
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# SPDX-License-Identifier: GPL-3.0-only
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# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
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# SPDX-FileCopyrightText: 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
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# SPDX-FileCopyrightText: 2023 Leah Rowe <leah@libreboot.org>
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. "include/err.sh"
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. "include/defconfig.sh"
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. "include/blobutil.sh"
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main()
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{
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[ $# -gt 0 ] || \
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err "No argument given"
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board="${1}"
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boarddir="${cbcfgsdir}/${board}"
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check_defconfig "${boarddir}" || exit 0
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detect_firmware && exit 0
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scan_sources_config
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build_dependencies
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download_blobs
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}
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detect_firmware()
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{
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set -- "${boarddir}/config/"*
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. "${1}" 2>/dev/null
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for c in CONFIG_HAVE_MRC CONFIG_HAVE_ME_BIN CONFIG_KBC1126_FIRMWARE \
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CONFIG_VGA_BIOS_FILE CONFIG_INCLUDE_SMSC_SCH5545_EC_FW; do
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eval "[ -z \"\${${c}}\" ] || return 1"
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done
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printf "Blobs not needed for: %s\n" "${board}" 1>&2
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}
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scan_sources_config()
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{
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_b=${board%%_*mb} # shorthand to avoid duplicating config per rom size
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awkstr=" /\{.*${_b}.*}{/ {flag=1;next} /\}/{flag=0} flag { print }"
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while read -r line ; do
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set ${line} 1>/dev/null 2>/dev/null
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eval "${1}=\"${2}\""
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done << EOF
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$(eval "awk '${awkstr}' config/blobs/sources")
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EOF
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}
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build_dependencies()
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{
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[ -d ${cbdir} ] || \
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./update project trees coreboot ${cbdir##*/} || \
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err "build_dependencies: can't fetch ${cbdir}"
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for d in uefitool biosutilities bios_extract me_cleaner; do
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[ -d "${d}" ] && continue
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./update project repo "${d}" || \
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err "build_dependencies: can't fetch ${d}"
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done
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[ -f uefitool/uefiextract ] || \
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./handle make file -b uefitool || \
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err "build_dependencies: can't build uefitool"
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if [ ! -f "${cbdir}/util/kbc1126/kbc1126_ec_dump" ]; then
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make -C "${cbdir}/util/kbc1126" || \
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err "build_dependencies: can't build kbc1126_ec_dump"
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fi
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}
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download_blobs()
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{
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[ -z "${CONFIG_HAVE_ME_BIN}" ] || \
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fetch "intel_me" "${DL_url}" "${DL_url_bkup}" "${DL_hash}"
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[ -z "${CONFIG_INCLUDE_SMSC_SCH5545_EC_FW}" ] || \
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fetch "sch5545ec" "${SCH5545EC_DL_url}" \
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"${SCH5545EC_DL_url_bkup}" "${SCH5545EC_DL_hash}"
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[ -z "${CONFIG_KBC1126_FIRMWARE}" ] || \
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fetch "kbc1126ec" "${EC_url}" "${EC_url_bkup}" "${EC_hash}"
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[ -z "${CONFIG_VGA_BIOS_FILE}" ] || \
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fetch "e6400vga" "${E6400_VGA_DL_url}" \
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"${E6400_VGA_DL_url_bkup}" "${E6400_VGA_DL_hash}"
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if [ ! -z "${CONFIG_HAVE_MRC}" ]; then
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./update blobs mrc || err "download_blobs ${board}: !mrc"
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fi
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}
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fetch()
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{
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dl_type="${1}"
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dl="${2}"
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dl_bkup="${3}"
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dlsum="${4}"
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dl_path="${blobdir}/cache/${dlsum}"
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mkdir -p "${blobdir}/cache" || err "fetch: !mkdir ${blobdir}/cache"
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dl_fail="y"
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vendor_checksum "${dlsum}" && dl_fail="n"
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for x in "${dl}" "${dl_bkup}"; do
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[ "${dl_fail}" = "n" ] && break
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[ -z "${x}" ] && continue
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rm -f "${dl_path}" || err "fetch: !rm -f ${dl_path}"
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wget --tries 3 -U "${agent}" "${x}" -O "${dl_path}" || continue
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vendor_checksum "${dlsum}" && dl_fail="n"
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done
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if [ "${dl_fail}" = "y" ]; then
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printf "ERROR: invalid vendor updates for: %s\n" "${board}" 1>&2
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err "fetch ${dlsum}: matched vendor update unavailable"
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fi
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eval "extract_${dl_type}"
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}
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vendor_checksum()
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{
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if [ ! -f "${dl_path}" ]; then
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printf "Vendor update not found for: %s\n" "${board}" 1>&2
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return 1
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elif [ "$(sha512sum ${dl_path} | awk '{print $1}')" != "${1}" ]; then
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printf "Bad checksum on vendor update for: %s\n" "${board}" 1>&2
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return 1
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fi
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}
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extract_intel_me()
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{
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_me_destination=${CONFIG_ME_BIN_PATH#../../}
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mkdirs "${_me_destination}" "extract_intel_me" || return 0
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bruteforce_extract_intel_me "$(pwd)/${_me_destination}" \
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"$(pwd)/${appdir}" || \
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err "extract_intel_me: could not extract Intel ME firmware"
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if [ ! -f "${_me_destination}" ]; then
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err "extract_intel_me, ${board}: me.bin missing"
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fi
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}
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# cursed, carcinogenic code. TODO rewrite it better
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bruteforce_extract_intel_me()
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{
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_me_destination="${1}"
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cdir="${2}" # must be an absolute path, not relative
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[ -f "${_me_destination}" ] && return 0
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sdir="$(mktemp -d)"
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mkdir -p "${sdir}" || return 1
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(
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cd "${cdir}" || \
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err "bruteforce_extract_intel_me: can't cd \"${cdir}\""
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for i in *; do
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if [ -f "${_me_destination}" ]; then
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# me.bin found, so avoid needless further traversal
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break
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elif [ -L "${i}" ]; then
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# symlinks are a security risk, in this context
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continue
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elif [ -f "${i}" ]; then
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"${mecleaner}" -r -t -O "${sdir}/vendorfile" \
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-M "${_me_destination}" "${i}" \
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&& break # (we found me.bin)
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"${mecleaner}" -r -t -O "${_me_destination}" "${i}" \
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&& break # (we found me.bin)
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"${me7updateparser}" -O "${_me_destination}" "${i}" \
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&& break # (we found me.bin)
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_7ztest="${_7ztest}a"
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extract_archive "${i}" "${_7ztest}" || continue
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bruteforce_extract_intel_me "${_me_destination}" \
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"${cdir}/${_7ztest}"
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elif [ -d "$i" ]; then
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bruteforce_extract_intel_me "${_me_destination}" \
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"${cdir}/${i}"
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else
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printf "SKIPPING: %s\n" "${i}"
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continue
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fi
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cdir="${1}"
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cd "${cdir}" # audit note: we already checked this (see above)
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done
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)
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rm -Rf "${sdir}" || err "bruteforce_extract_intel_me: !rm -Rf ${sdir}"
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}
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extract_kbc1126ec()
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{
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_ec_destination=${CONFIG_KBC1126_FW1#../../}
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mkdirs "${_ec_destination}" "extract_kbc1126_ec" || return 0
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(
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cd "${appdir}/" || \
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err "extract_kbc1126_ec: !cd \"${appdir}/\""
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mv Rompaq/68*.BIN ec.bin || :
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if [ ! -f ec.bin ]; then
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unar -D ROM.CAB Rom.bin || \
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unar -D Rom.CAB Rom.bin || \
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unar -D 68*.CAB Rom.bin || \
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err "extract_kbc1126_ec: can't extract ec.bin"
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mv Rom.bin ec.bin || \
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err "extract_kbc1126_ec: *didn't* extract ec.bin"
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fi
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[ -f ec.bin ] || \
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err "extract_kbc1126_ec: ${board}: can't extract ec.bin"
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"${kbc1126_ec_dump}" ec.bin || \
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err "extract_kbc1126_ec: ${board}: can't extract ecfw1/2.bin"
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)
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ec_ex="y"
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for i in 1 2; do
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[ -f "${appdir}/ec.bin.fw${i}" ] || ec_ex="n"
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done
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[ "${ec_ex}" = "y" ] || \
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err "extract_kbc1126_ec: ${board}: didn't extract ecfw1/2.bin"
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cp "${appdir}/"ec.bin.fw* "${_ec_destination%/*}/" || \
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err "extract_kbc1126_ec: cant mv ecfw1/2 ${_ec_destination%/*}"
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}
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extract_e6400vga()
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{
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_vga_destination=${CONFIG_VGA_BIOS_FILE#../../}
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mkdirs "${_vga_destination}" "extract_e6400vga" || return 0
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[ "${E6400_VGA_offset}" = "" ] && \
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err "extract_e6400vga: E6400 VGA offset not defined"
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[ "${E6400_VGA_romname}" = "" ] && \
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err "extract_e6400vga: E6400 VGA ROM name not defined"
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tail -c +${E6400_VGA_offset} "${dl_path}" | \
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gunzip >"${appdir}/bios.bin" || :
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(
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cd "${appdir}" || err "extract_e6400vga: can't cd ${appdir}"
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[ -f "bios.bin" ] || err "extract_e6400vga: can't extract bios.bin"
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"${e6400_unpack}" bios.bin || printf "TODO: fix dell extract util\n"
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[ -f "${E6400_VGA_romname}" ] || \
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err "extract_e6400vga: can't extract vga rom from bios.bin"
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)
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cp "${appdir}"/"${E6400_VGA_romname}" "${_vga_destination}" || \
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err "extract_e6400vga: can't copy vga rom to ${_vga_destination}"
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}
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# TODO: this code is cancer. hardcoded is bad, and stupid.
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# TODO: make it *scan* (based on signature, in each file)
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extract_sch5545ec()
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{
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rm -Rf "${dl_path}_extracted" || err "!rm ${dl_path}_extracted"
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_sch5545ec_destination=${CONFIG_SMSC_SCH5545_EC_FW_FILE#../../}
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mkdirs "${_sch5545ec_destination}" "extract_sch5545ec" || return 0
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# full system ROM (UEFI), to extract with UEFIExtract:
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_bios="${dl_path}_extracted/Firmware"
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_bios="${_bios}/1 ${dlsum} -- 1 System BIOS vA.28.bin"
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# this is the SCH5545 firmware, inside of the extracted UEFI ROM:
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_sch5545ec_fw="${_bios}.dump/4 7A9354D9-0468-444A-81CE-0BF617D890DF"
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_sch5545ec_fw="${_sch5545ec_fw}/54 D386BEB8-4B54-4E69-94F5-06091F67E0D3"
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_sch5545ec_fw="${_sch5545ec_fw}/0 Raw section/body.bin" # <-- this!
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# this makes the file defined by _sch5545ec_fw available to copy
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"${uefiextract}" "${_bios}" || \
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err "extract_sch5545ec: cannot extract from uefi image"
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cp "${_sch5545ec_fw}" "${_sch5545ec_destination}" || \
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err "extract_sch5545ec: cannot copy sch5545ec firmware file"
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}
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mkdirs()
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{
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[ -f "${1}" ] && \
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printf "mkdirs ${1} ${2}: already downloaded\n" 1>&2 && return 1
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mkdir -p "${1%/*}" || err "mkdirs ${1} ${2}: !mkdir ${1%/*}"
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rm -Rf "${appdir}" || err "mkdirs ${1} ${2}: can't remove ${appdir}"
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mkdir -p "${appdir}/" || err "mkdirs ${1} ${2}: !mkdir ${appdir}"
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extract_archive "${dl_path}" "${appdir}" || \
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[ "${2}" = "extract_e6400vga" ] || err "mkdirs ${1} ${2}: !extract"
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}
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extract_archive()
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{
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innoextract "${1}" -d "${2}" || python "${pfs_extract}" "${1}" -e || \
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7z x "${1}" -o"${2}" || unar "${1}" -o "${2}" || return 1
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}
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main $@
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